AAT3192/93
Low-Cost, 2-/3-Channel
Charge-Pump LED Drivers
Evaluation Board Schematic
DC-
DC+
C2
VIN
D1
D2
D3
JPx
1μF
J1
GND
1
2
3
4
5
10
9
8
7
6
JP5
C1
D1
D2
D3
1μF
OUT
C-
GND
RSET
C+
IN EN/SET
R1
14.3k
C3
1μF
U1
AAT3193
GND
GND
R7
220
J2
R6
100K
VIN
GND
R3 R2 R1
1K 1K 1K
U2
C5
R5
1
2
3
4
8
7
6
5
VR4
POT10K
1μF 330
VDD VSS
CYCLE
UP
SW3
SW2
SW1
GP5 GP0
GP4 GP1
GP3 GP2
0
4
LED7
RED
2
1
3
5
0
PIC12F675
2
4
1
3
5
R4
330
GND
GND
DOWN
0
2
4
1
3
5
LED0
GRN
GND
GND
Evaluation Board Layout
Figure 8: AAT3193 Evaluation Board
Top Side Layout.
Figure 9: AAT3193 Evaluation Board
Bottom Side Layout.
3193.2007.05.1.0
15